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Originally, some of the commands' usage display didn't achieved to show newline, while some of them does, which are more user-friendly, and won't confuse the message if there're more which should be in the nextline. Fix this issue by returning usage string with a newline. Signed-off-by: I Hsin Cheng <[email protected]>
55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
// Copyright 2021 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmd
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import (
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"context"
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"fmt"
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"os"
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"github.com/google/subcommands"
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"gvisor.dev/gvisor/pkg/sentry/platform"
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"gvisor.dev/gvisor/runsc/flag"
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)
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// Platforms implements subcommands.Command for the "platforms" command.
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type Platforms struct{}
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// Name implements subcommands.Command.Name.
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func (*Platforms) Name() string {
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return "platforms"
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}
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// Synopsis implements subcommands.Command.Synopsis.
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func (*Platforms) Synopsis() string {
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return "Print a list of available platforms."
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}
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// Usage implements subcommands.Command.Usage.
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func (*Platforms) Usage() string {
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return "platforms [options] - Print available platforms.\n"
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}
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// SetFlags implements subcommands.Command.SetFlags.
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func (*Platforms) SetFlags(f *flag.FlagSet) {}
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// Execute implements subcommands.Command.Execute.
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func (*Platforms) Execute(_ context.Context, f *flag.FlagSet, args ...any) subcommands.ExitStatus {
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for _, p := range platform.List() {
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fmt.Fprintf(os.Stdout, "%s\n", p)
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}
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return subcommands.ExitSuccess
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}
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